The first PSone classic title has appeared for download on the European PlayStation Vita store.

Users who downloaded the game, Buzz Lightyear of Star Command, found that it was non-functional. Reports on forum NeoGAF claim that the game attempts to run through the Vita's PSP emulation before returning a system error.

Sony Worldwide Studios president Shuhei Yoshida recently confirmed that the feature is still on its way.

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"Our engineers are working hard on it," Yoshida tweeted. "Please be patient."

The PSone classic that appeared on Vita seems to have been an error, but many are taking it as indication of the feature's close arrival.

Sony has not yet responded or issued a statement regarding the leaked game's arrival on the PlayStation Store.

PSone classics can be downloaded from the PlayStation store and played on PlayStation 3 and PSP.